Incandescent gas-burner



2 Sheets-ShinerJ 1.

(No Model.)

H. J. BELL.

INGANDBSGBNT GAS BURNER.

N. PERS, Phnlcrlimognyhar, Washington. 0.0

' 2 Sheets-Sheet 2.

(No Model.)

H. J. BELL.

INGANDBSGENT GAS BURNER. l

Patented Jan. 15, 1889.

N. Prrina Pl-mmumognpm. wmmngm", D. c,

UNITED STATES PATENT OFFICE.

HAROLD J. BELL, OF \YOODBURY, NEV JERSEY, ASSIGNOR TO THE VELS-v BACH INCANDESCENT GAS LIGHT COMPANY, OF NEIV JERSEY.

INCANDESCENT GAS-BURN ER.

SPECIFICATION forming part of Letters Patent No. 396,254, dated January 15, 1889.

Application filed March 21, 1888. Serial No. 267,987. (No model.) a

To @ZZ whom t may concern.' support said chamber from above; or, as be- Be itknown that I, HAROLD J. BELL,a citfore mentioned, the gas and air mixing' chamzen of the United States, residing at Ivoodber can be supported from below on a gasbury, in the county of Gloucester and State of bracket, through which gas can be supplied, 55 New Jersey, have invented new and useful in which event the upper end of the tube 10 Improvements in Incandescent Gas-Lamps,ot' may be closed by a plug or other suitable which the following is a specification. means.

This invention relates to a gas-lamp com- The lower end ot' the gas-tube 10 is open prising a number of atmospheric gas-burners and passes through a disk, 11, that is secured 6o 1o and incandescent devices; and it consists in horizontally in the lower part ot the gas and certain peculiarities in the construction and air mixingl chamber 1, said disk being' pro* relative arrangement of parts, will be vided with a series of perforations,12, for the hereinattermore fully described and claimed. upward passage of gas into the gas and air In the annexed drawings, illustrating the mixing' chamber. In the lowerl part ot` the 65 I5 invention, Figure 1 is a vertical section of an gas and air mixing chamber 1 is formed a incandescent -lamp embodying' my imseries of lateral air-inlets, 13, and in order to provements. Fig. 2 is a horizontal section of control the quantity of air admitted through the same on the line 0c, and Fig'. is a simithese inlets a movable band or collar, 11, is lar section on the line ly y of Fig. 1. placed around the lower parts of the cham- 7o 2o By referring' to Fig. l it will be seen that ber, so as to be capable ot covering or unthe numeral 1 designates a gas and air mixcovering the air-inlets, said band or collar ing chamber, which is cylindrical in it-s lower being provided with a series of openings, 15, part and iiared or expanded on all sides in its that are capable ot registering with said inupper portion. In the lower end of this lets when the band or collar is properly ro- 75 chamber 1 maybe screwed an internally and tated. A

externally threaded union or coupling', 2, A gallery, 1G, of metal, glass, or other suit- Y whereby said chamber can be secured to and able material, is adj ustably supported on the supported on agas-bracket; or the gas-bracket gas and ai r mixing chamber 1 by means ot and the gas .and air mixing' chamber can be a set-screw, 17, that engages a collar, 18, 8o connected by any suitable means. As shown formed on or attached to vthe lower part ot' in Fig. 1', the lower end ot' the coupling' or said gallery. The gallery or globe-holder 1G union 2 is closed by a plug', 3, the gas-supply supports a glass globe, 19, that surrounds the in this instance being introduced from above, entire group oli' burners and incandescent deas will be hereinafter described. vices. This gallery or globe-holder 16 is pref- 85 The upper end of the gas and air mixing erably closed or impert'orate at its bottom, as chamber 1 is closed, except at openings 4, a shown, so as to compel the outer-air supply number of which are provided in. the top of to be obtained 'from over the top ot the globe said chamber for the insertion of the atmosand thus become heated on its way down pheric gas-burners 5, which may be of any around the several chimneys to their lower 9o 4o suit-able construction,thoughI preferaburner ends, through which it passes upward around of the kind described in my application iiled and through the incandescent mantles. March 8, 1888, Serial No. 266,505. Each On the tube 10, above the gas and air mixburner-tube supports a gallery, 6, which in ing chamber, is an adjustable ring, 20, that turn supports a rod, 7, from which is sussupports a metallic hood, 21, having a metal- 95 pended above the burner a mantle, hood, cap, lic chimney, 22, at its upper end. The ring or frame, 8, of incandescent material, and a 2O may be held in place by a screw, 23, or glass chimney, 9, is pla-ced on each gallery otherwise, so as to be adjustable vertically around the burner and incandescent device. on the tube 10, and this ring 20thus affords A depending` vertical gas-supply tube, 10, an adjustable support for the hood 21, which ,roo 5o may be passed into the gas and air mixing is provided witha bottom, 24, that rests on chamber 1, and be secured therein so as to said ring.

In the hood-bottom are a number of circular openings, 25, that receive the upper ends of the glass chimney' 0, which surround the suspended incandescent devices. In the metal hood-chimney 22 is secured a transverse bar,

2G, havin midway its length a centrally-eulargcd slot, 27, that surrounds the tube lO, and on the upper portion ot' this tube, above the slotted bar 2U, is a laterally-projccting pin,

ro 2S, over which the slot 27 in the bar 2G can be passed when the hood is raised, so that by lit'ting the hood 2l and chimney 22 until the slotted bar 2t; clears the pin 2S, and then turning the hood and chimney a quarter-revolution, they can be supported on said pin while the chimneys 9, surrounding the burners, are being removed and replaced, or whenever it is desired to obtain access to the burners and incandescent devices.

rlhe gas and air supplied to the mixingchamber l passes to the group of burners supported by said chamber around the central tube, l0, and when ignited the several mantles or trames S otl refractory nutterial are heated to incandescence. The open upper end ol the globe lf) admits a quantity of air, whicluin passing downward around and between the group ol' chimneys E), becomes heated before entering said chimneys at their lower 3o ends, and a large quantity ot' hot air is thus distributed on the surfaces of the incandescent. devices, so as to increase their efficiency in the production of light.

By employing a closed globe-holder, lo, and

causing the upper ends ot' the chimneys 9 to penetrate the bottom of the metallic hood 2l, as shown, the air admitted over the upper edge ot' the globe l) is compelled to pass down around the several chimneys, and thus be- 40 come thoroughlyheated before gainingaccess to their lower open ends.

It will be observed that thc various parts of the lamp are readily detachable and adjustable for facilitating the removal and -replacement of parts when required, and aitord convenient means for grouping a number of gaslincaxulescents in a cluster.

\Vhat I claim as my invention isl. In an incandescent gas-lanl'p, the combi- .5o nation', with a gas and air mixing chamber and a number ot gas-burl'lers supported on and communicating with said chamber, ot a central tube passed vertically through said chamber, and a perforated disk surrounding the open lower end ol said tube, substantially as described.

2. In an incandescent gas-lamp, the combination, with a number of atmospheric gasburners arranged in a group or cluster and a corresponding number of incandescent devices suspended above said burners, of a chimney surrounding each incandescent device, a vertically-adjustable globe surrounding the entire group or cluster of burners and incandescent devices, and a vertically-adjustable metallic hood and chimney supported abpve the several incandescent devices and their surrounding chimneys and globe, but penetrated by said chimneys, substantially as described.

3. In an incandescent gas-lamp, the combination of a number ot atmospheric gas-burners, a corresponding number et incandescent devices suspended above said burners, chimneys surrounding said incandescent devices, a globe surroululing all the burners and chimneys, and a globe-holder having a closed or imperforate bottom, substantially as described.

-l-. In an incandescent gas-lamp, the combination of a gas and air mixing chamber, a number of burners supported by said chamber, a central tube having an adjustable collar, and a metal hood supported on said collar above the gas-lmrners, substantially as described.

5. In an incandescent gas-lamp, the combination, with a group ol' gas-burners and incandescent devices and their chimneys, of a central tube having a collar, Q0, and pin 2S, and a hood, 2l, supported on said collar, and having a slotted bar, 2U, adapted to engage the pin 2S, whereby the hood can be raised and supported clear of the burner-chimneys, substantially as described.

t3. In an .incandescent gas-lamp, the combination of a gas and air mixing chamber, a number ot' gas burners supported by said chamber, incainilescent devices suspended above the burners and surrounded by chimneys, an adjustable globe surrounding the en.- tire group of burners and incandescents, and an adjustable metal hood suspended above but penetrated by the burner-chimneys,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HAROLD J. BELL.

IYitnesses:

G. R. TAGGART, ROBERT S. CLYMER.

IOO 

